What is the wilderness function of the image intensifier?

Do you understand the wilderness function of the image intensifier? A brief introduction is to add a pair of auxiliary anodes, change the potential of the auxiliary anode and the focusing pole to change the magnification of the electron lens. Increasing the anode potential, the magnification is increased, and the effect on the input screen is projected away from the central portion beyond the output screen, thereby imaging a range of images at the center of the input screen onto the output screen.

Note: The small field of view makes full use of the resolution of the output screen. When using a small field of view, the reduction of the gain is reduced. To maintain the original output brightness, the X-ray output must be appropriately increased.
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Author:Alina